Directory
Elizaveta Ermakova
| When |
Dec 22, 2021 à 10:30 AM |
|---|---|
| Where |
André Collet |
| Contact |
Alla Lemeune |
Optical thin film sensors based on phosphonate-substituted chromophores
Effective environmental monitoring is an actual problem of modern society. The main trend is the development of miniature diagnostic devices operating in aqueous media. Among them, thin film sensor systems, characterized by compactness, speed and availability are the greatest prospects. For this purpose, Langmuir-Blodgett (Langmuir-Schaefer) technique is the most promising approach for fabrication of highly ordered ultrathin films on solid substrates, which also allows one to control molecular orientation at the air/water interface in Langmuir monolayers and, thus, attaining the structural organization necessary for the required task. In this regard, phosphonate-substituted organic chromophores are of particular interest for obtaining nanomaterials for practical use. In this lecture the development of approaches for formation of solid-state thin film sensors based on new polyfunctional phosphonate-substituted anthraquinone, porphyrin and quinoxaline derivatives for determination of metal ions in an aqueous media will be discussed.